13x+8+8x=9x-28

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Solution for 13x+8+8x=9x-28 equation:


Simplifying
13x + 8 + 8x = 9x + -28

Reorder the terms:
8 + 13x + 8x = 9x + -28

Combine like terms: 13x + 8x = 21x
8 + 21x = 9x + -28

Reorder the terms:
8 + 21x = -28 + 9x

Solving
8 + 21x = -28 + 9x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-9x' to each side of the equation.
8 + 21x + -9x = -28 + 9x + -9x

Combine like terms: 21x + -9x = 12x
8 + 12x = -28 + 9x + -9x

Combine like terms: 9x + -9x = 0
8 + 12x = -28 + 0
8 + 12x = -28

Add '-8' to each side of the equation.
8 + -8 + 12x = -28 + -8

Combine like terms: 8 + -8 = 0
0 + 12x = -28 + -8
12x = -28 + -8

Combine like terms: -28 + -8 = -36
12x = -36

Divide each side by '12'.
x = -3

Simplifying
x = -3

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